Shimano Ultegra RD-R8150 Di2 Rear Derailleur - 12 Speed - Black / 12 Speed
Now simplified with a single derailleur cage length, the 12-speed Shimano Ultegra R8150 rear derailleur packs our fastest, most precise shifting into a more approachable option. With our fastest, most accurate shifting, the 12-speed Ultegra R8150 rear derailleur is more versatile than ever thanks...
Sram Force eTap AXS E1 Rear Derailleur - 12 Speed - Unicorn Black / Laser Foil / 12 Speed
Lighter, faster and more capable than ever, the Force AXS rear derailleur does it all in style. Covering cassette ranges from 10-28T up to 10-36T, this wireless wonder has a new, lighter cage and a larger pulley wheel to increase drivetrain efficiency . One derailleur ready for 2x or 1x , the steepest...
Sram Red eTap AXS D1 Rear Derailleur - 12 Speed - Black / 12 Speed / Max 33T
The heart of the connected cadre. The Sram Red eTap AXS™ rear derailleur is AXS enabled for easy personalization and designed for both 1x and 2x systems. Advanced chain management keeps it silent and secure no matter the terrain. The derailleur also comes with faster pulleys, bearings, motors and signals,...
Sram Red XPLR eTap AXS D1 Rear Derailleur - 12 Speed - Black / 12 Speed
If your ride doesn’t feel complete until you get a little dirt on your tires, you know the importance of capable components that can tackle anything. The Red XPLR eTap AXS rear derailleur is a dedicated 1x-specific unit designed for use with the XPLR 10-44 cassette. It makes for an uncluttered drivetrain...
Shimano Dura-Ace R9250 Di2 Rear Derailleur - 12 Speed - Black / 12 Speed
Shimano fastest ever shifting across Shimano's widest ever Dura-Ace gear range, the RD-R9250 is capable of both race wins and personal bests. The Shimano Dura-Ace R9250 Rear Derailleur integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise...